linux-kernel - Re: [PATCH 01/22] pci-dma-compat: Add pci_zalloc

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Message-Id: <20140625.153109.1658452238116055408.davem@davemloft.net>
Date:	Wed, 25 Jun 2014 15:31:09 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	joe@...ches.com
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	arnd@...db.de, linux-arch@...r.kernel.org
Subject: Re: [PATCH 01/22] pci-dma-compat: Add pci_zalloc_consistent helper

From: Joe Perches <joe@...ches.com>
Date: Wed, 25 Jun 2014 14:51:51 -0700

> On Wed, 2014-06-25 at 12:27 -0700, Andrew Morton wrote:
>> On Mon, 23 Jun 2014 06:41:29 -0700 Joe Perches <joe@...ches.com> wrote:
>> 
>> > Add this helper for consistency with pci_zalloc_coherent
>> > and the ability to remove unnecessary memset(,0,) uses.
>> 
>> While we're being anal..  I'm not a big fan of the patch titles.  Worst
>> is "amd: Use pci_zalloc_consistent".  "amd" is quite a poor identifier
>> - it's only when you get in and look at the diff that you realise it's
>> an ethernet driver.
> 
> Yeah, those "amd:" prefixes should really have been "pcnet32:"
> 
>> People sometimes address this by using
>> 
>> 	"drivers: net: ethernet: amd: use pci_zalloc_consistent"
>> 
>> which strikes me as utterly perverse.  We already have a nice way of
>> representing the hierarchy and that's using '/'.
> 
> I used to do that until several people complained.
> Now I don't.  btw:  Documentation/SubmittingPatches says:
> 
> 15) The canonical patch format
> 
> The canonical patch subject line is:
> 
>     Subject: [PATCH 001/123] subsystem: summary phrase

+1

We've been representing subsystems using colon prefixes for ages, and
I can't seen the value of starting to use something inconsistent with
a decade of precedence.
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